When I try to RDP to Windows 10 Pro machine it hangs at the "Please wait" screen for a user. The only way to fix it is to restart the remote machine and then try to remote in again. But the issue happens again.
Another working solution that didn't require a reboot was to RDP using an admin account, go to task manager>users, and then right-click on the previous user and select connect. Enter the password and your session will change to the previous user.
RDP is an administrative feature for win10
The user has to be a member of the Remote Desktop users.
Gave you considered using an RDS server os?